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F. B. MALLORY.

SHUTTER WORKER..

No. 373,147. Patented Nov. 15, 1887.

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UNITED STATES PATENT @Erica ERANK R. MALLORY, or ELEMINGTON, NEw JERSEY.

SHUTTER-WORKER.

SPECIFICATION forming part of Letters Patent No. 373,147, dated November15, 1887.

l Application filed June 2l, 1887. Serial No. 241.969. (No model.)

To all whom it may concern:

Be it known that I, FRANK B. MALLoRY, a citizen of the United States,residing at Fleinington, in the county .of Hunterdon and State of NewJersey,haveinvented certain new and useful Improvements inShutter-Wvorkers; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appert'ains to make and use the same,reference being had to the accompanying drawings, and to the letters andfigures of reference marked thereon, which form a part of thisspecification.

My invention relates to shutter-workers; andit consists in certainconstructions, combinations, and arrangements of parts, as will behereinafter described, and pointed out in the claims, whereby animproved device for working shutters is produced.

In the accompanying drawings, Figure l is a view, partly in section andpartly in elevation, of my improved shutter-worker as applied to awindow-frame and shutter. Fig. 2 is a perspective view of theshutter-worker. Fig. 3 is a view, partly in plan and partly in section,of a modied construction of the shutter-worker as applied to awindow-frame and shutter. Fig. 4 is another modified construction of theshutter-workershown in perspective. Fig. 5 is a perspective view ofstill another modied construction of my shutterworker. Fig. 6 is avertical central section through the worm-wheel and center pin of myshutter-worker. Fig. 7 is a similar section, the wormwheel and wormbeing omitted. Figs. 8 and 9 are sectional views of the hous`ing,showing modified constructions of the center or axial pin of theworm-wheel; and Fig. 10 is a section of the housing in front of thehinge-plate, forming part thereof.

Letters A B in the drawings represent a pair of hinge-plates; C, ahousing; D, a wormwheel; E, a worm or screw; F, ashutter, and G aWindow-frame.

The hinge-plate A is provided with a horizontal housing,`C, having twohorizontal walls, c c', and a vertical connecting-wall, c2, which servesto strengthenv the walls c c and close 5o the housing on one side. Theremaining porthrough it into the housing. After being thus tions of thewalls c c are not connected, so that the worm-wheel D can behorizontally slipped between and fastened by a pivot or axial pin, d.The pivot-pin d is provided with a head, d', ornamental or plain, andmay have a small transverse pin, d2, as seen in Fig. 6, in order to holdit in place; or a screwthread, d3, may be provided, wherewith it issecured to the wall c, while a sharp point, d, bites the wall c belowand thus steadies the pin, as shown in Fig. 8. The pin d may alsoberiveted into the wall c,in which case it should not extend up to thewall c, in order to permit the worm-wheel to be slipped in place betweenit and the upper wall, c. The worm-wheel is in every case a part of thehinge-plate,'and its mounting upon the pin d between the walls c ceffects the union of the hinge-plates A B, as seen. The circularportions ofthe walls c c have a curved outer cov- 7o eringplate, C',between them, which is hinged at c3 at or near thev connecting-wall c2,and closes the curved portion of the housing, thus protecting theworm-wheel D and screw E against dust, ice, and rain. This coveringplatemay be held'closed by means of an ordinary spring, C2, Fig. 4; or itselongated end portion, c4, may move in a staple, c5, as shown in dottedlines in Fig. l, or other suitable known means for automatically closingit may 8o be employed.

In order to enable me to use the worm or screw on shank or shaft e5,(shown in Fig. l and described in my Patent No. 343,716, dated June 15,1886,) I provide an elongated opening, e, having dilierent diameters, asshown, in the wall formed by plate A, the hole being of a sizesufficient to easily pass the screw passed into the housing the worm orscrew is 9o moved toward the connecting-wall c2 into the smallerdiameter of the opening e, and its shank e5 is inserted into asemi-cylindrical bearing, c, formed on the said wall c2, to whichbearing it is secured by means of a vertical lock-pin, es, fastened tothe housing by means of a head and nut, as shown in Figs. 6 and 7, orotherwise suitably secured. Ihis pin e6 prevents the shank of the wormor screw from leaving its semi-cylindricalbearing and crowdroo ing intothe teeth of the screw-wheel D, and thus the shank of the screw or wormruns propf erly between the semi cylindrical bearings.

I have shown in Fig. 5 that a erown,worn1, or screw wheel may beemployed, instead of the ordinary worm-wheel, and in Fig. 3 I have showna pair of parliament-hinges provided with my invention, in whichconstruction the opening e is rendered unnecessary, inasmuch as thebearing of the screw-shank lies in the parting-line ofthe hinge-plates.

What I claim as my invention is- 1. The combination, with thehinge-plate A, provided with housing portions c c ci, one of whichportions is formed with a halbearing, c, of the opening e and the axialpind, worm- Wheel D, pin e, and worm or screw E, with its shank orshaft,substantially as and for the pur pose described.

2. A shutter-worker housing comprising in its construction a hingedmovable covering portion or plate, C', said plate swinging on itshinge-pin to admit of the introduction of the worm-wheel D between thehorizontal walls of the housing, and also accommodating itself to themovements of the shutter and automatically resuming its normal coveringposition, substantially as and for the purpose described.

3. In a shutter-worker, the combination of a hinge-plate, as A, providedwith horizontal housing-walls c c and vertical connecting-wall c2, ahinged horizontallymoving covering plate, C', a hinge-plate, B, providedwith a worin-wheel, D, and a worm, E, on a shaft or shank, e5,substantially as and for the purpose described.

4. The combination of the pin e with the housing portion c c c2, andworm E, and shaft e5, and worm-wheel D and its pin d of ashutterworker,substantially as and for the purpose described.

In testimony whereof I afix my signature in presence of two witnesses.

FRANK B. MALLORY.

Vitnesses:

N. DUNHAM STIGER, C. C. DUNHAM.

